163015680 has 88 divisors (see below), whose sum is σ = 521444592. Its totient is φ = 43466752.

The previous prime is 163015667. The next prime is 163015681. The reversal of 163015680 is 86510361.

It is a super-2 number, since 2×163015680² = 53148223851724800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (163015681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10054 + ... + 20666.

Almost surely, 2^163015680 is an apocalyptic number.

163015680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163015680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260722296).

163015680 is an abundant number, since it is smaller than the sum of its proper divisors (358428912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163015680 is a wasteful number, since it uses less digits than its factorization.

163015680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10641 (or 10623 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 163015680 is about 12767.7593962292. The cubic root of 163015680 is about 546.2730724911.

The spelling of 163015680 in words is "one hundred sixty-three million, fifteen thousand, six hundred eighty".